The Center for Bioethics and Human Dignity is offering a free downloadable Advance Directive. The form is simple yet carefully worded and based on biblically-informed bioethical principles.
NOTE: It contains instructions for using and modifying it. Personally, I will probably be modifying the provision saying I don't want want to be put to sleep by assisted suicide - for me, I think that would be more humane than starving me or letting me suffer a protracted, painful death. That's what they shoulda done for Terri if they were gonna let her die. Idiots.
HT: evangelical outpost